Carbonator and cooler



gan y 31935, L. c. CARROLL ET AL GARBONATOR AND COOLER Filed Feb. 1'7,1955 T c Nf W.. 1 f A @l LM f/ MM Y/ B Patented 8, 1935 UNITED STATES A1mm canaomroa aan cooraa Leighc. Carroll and -Charlie W. Lovelace,Kansas City,Mo.; saidcarroll signor to saidLovelaoe Application February17, 1933, Serial No. 657,22*!v 9 Claims. (Cl. (i2-91.5)

This invention relates to apparatus for treating liquids and hasparticular reference to means for both carbonating and cooling a liquidwithout the use of complicated machinery and parts and in such a mannerthat the simple unit contemplated might be used at home or in locationswhere there is no electricity or other means available for operatingpumps or other equipment that is commonly used for performing thefunction of so treating liquids.

' One of the most important aims of the instant invention is thecontemplation of a unit of the above mentioned character that has as apart of its structure, a carbonating tank and a cooler container, bothof which are formed to receive and utilize solidified carbon dioxide ordry ice, the said tank having means establishing communication betweenthe lower portion thereof vand the interior of the main receptacle,whereby carbon dioxide gas may be injected into the liquid containedwithin the receptacle after a predetermined pressure has been createdwithin the carbonator tank.

A further object of this invention is to provide a carbonator tank forapparatus of the character mentioned that not only is equipped with theaforementioned injecting valve, but also has a relief valve forming apart thereof which permits the escape of gas after the pressure createdboth Within the carbonator tank and main receptacle has reached apredetermined point established by the release member or spring forminga part of the injecting valve.

Another object of this invention is to provide a carbonating and coolingunit which is equipped with a cooler container that is separate from thecarbonating tank, whereby refrigeration of the liquid within the mainreceptacle may take place even after the solidied carbon dioxide used incarbonating the liquid being treated has been used up. This combinationbetween main receptacle, carbonator tank and cooler container isestablished because of the necessity for using different amounts ofsolidified carbon dioxide to efficiently accomplish the desired results.

An even further object of this invention is to provide a novel injectingvalve which establishes connection between the interior of thecarbonator tank and the receptacle holding the liquid being treated,said valve being formed in a particular manner to establish anon-leaking seal in a manner more fully described in the specifications.Y

The desirability of setting up agitation both within the carbonator tankand main receptacle is also recognized in this invention and there isprovided simply formed agitators in the form of rockers that are-affixeddirectly to the main receptacle so that regardless of how slight thepressure or force exerted when using the unit, it will be movedsufficiently to create an agitation where it will serve to the bestadvantage.

A large number of minor objects of the invention will appear during thecourse of the following specification, referring to the accompanyingdrawing,A wherein:

Fig. 1 is a longitudinal, central, vertical section through acarbonating and cooling apparatus embodying this invention.

Fig. 2 is an end elevation of the same.

Y Fig. 3 is an enlarged. detailed, central, sectional view through theinjecting valve forming a part of the carbonator tank, and,

Fig. 4 is a cross section through the said valve, taken on line IV-IV ofFig. 3.

The main receptacle wherein is stored the liquid being treated may becreated to present a tank or the like 6, such as illustrated in Figs. 1and 2. This main receptacle has a liner 8 which is cylindrical, and whenforming the unit as illustrated, a trunnion 10 should be aixed at oneend on the axis of jacket 8, whereby to co-operate with pipe 12 in alike opposed position, so that when the jacket 14 is moved to position,liner l8 is maintained in spaced relation so that insulating material 16may be packed between liner 8 and jacket 14.

Obviously, any form of insulated receptacle may be used to contain orhold the liquid being treated so long as it has the property ofwithstanding an internal pressure and the ability to maintain the liquidat a low temperature, after such temperature has been reached throughthe medium of hereinafter described cooler container.

A drain and illling opening 18 is provided. whereby to fill or. emptythe receptacle when necessary, and a pressure gauge 20 forms a part ofthe equipment 'and is preferably positioned as illustrated near the topof the receptacle. A draw-oil valve 221s utilized to remove carbonatedliquid from within receptacle 6 when the unit is in operation and pipe12 terminates at a point in the lowest portion of receptacle 6 so thatpractically all of the liquid may be taken from within the receptaclethrough valve 22. A cooler container. 24 projects into receptacle 6 fromexteriorly thereof and is equipped with a cap 26 that is inscrewthreaded engagement with container 24 so that solidied carbondioxide chunks 28 may be dropped into container 24. This cap is equippedwith a relief valve comprising a head 30 and stem 32, the latter beingcircumscribed by spring 34 that is held under tension by nut 36,positioned within container 24.

A plurality of openings 38 are formed through cap 26 and are closed byhead 30 when the valve is in the closed position. Obviously,manipulation of nut 36 will vary the tension of spring 34 so that thepressure required to operate the same may be varied. Under normalconditions it is desirable to require that the relief valve be openedwhen generated gas within cooler container reaches a pressure of frombetween twenty to twenty-five pounds. Ihe exceptionally large area ofcontainer 24 that is contacted by the liquid being treated withinreceptacle 6 insures a quick refrigeration and since the material from,which container 24 is made is a good conductor. it is obvious that thesolidified carbon dioxide 28 within container 24 will eillciently servethe function of cooling the liquid.

In carbonating liquids through the use of so- A lidiiled CO2, it hasbeen found advantageous to combine with the aforementioned coolercontaineracarbonatortank40,suchasillustratedin Fig. i. The specincconstruction shown need not be followed, but it is essential that tank40 have a removable cap 42 which may be used in introducing-the properamount of dry ice to the interior thereof. In the instance shown andpreferred, a relief valve 44 should be provided to form a part of cap42. Port 46 forms the seat for valve head 48 and spring 50 serves tourge head 48 to the seated position against the pressure of generatedgases that are formed within tank 40. A set sleeve 52 is provided tovary the tension of spring 50. and under normal conditions the spring isset tn allow the valve to open when a pressure of from seventeen tonineteen pounds is established. Sleeve 52 is in screw-4 threadedengagement with dome 53 mounted on top of cap 42, and this dome servesas a housing for spring 50. Dry ice chunks 54 are positioned withincarbonator tank 40 where they release carbon dioxide gas and it is thisgas that is used to charge liquid being treated.

An injecting valve 56 is located in tank 40 at a place where it isentirely within container 6 and this valve is uniquely constructed sothat leakage does not occur. The detailed views, Figs. 3 and 4, clearlyillustrate the construction of this injecting valve 56. The body 58thereof is' hollow and in direct connection with the intenor of tank 40and the lowermost portion of body 58 has a number of holes 60 formedtherethrough which terminate in communication with a chamber 62 formedbetween the parts of the valve 56, as shown in Fig. 3. An annular flange64 circumscribes the holes 60 and depends from the bottom of body 58.Valve head 66 is integral with valve stem 68 which passes into body 58throughanopening'lo andamachinetis set up between said stem and walls ofthe opening. Chamber 62 is always illled with gas under pressure andwhen the pressure overcomes spring 78, it is obvious that an evenopening of the valve takes place without danger of tipping or a holdingopen at one side.

'Ihe inner end of stem 68 is screwthreaded as at 'I2 to receive nut 'I4which bears upon spring washer 76 bearing against spring 76, which drawshead 66 toward the bottom of body 58. Head 66 has an upstanding annularwall 80 which circumscribes annular ange 64 when the valve is closed,and a resilient gasket 82 within the confines of annular wall 80 bearsagainst the lower annular edge of flange 82 to set up a seal. Thuschamber 62 i's formed. which always has gas under pressure therein whenthe unit is in operation and through such construction it is obviousthat leakage is entirely precluded and no liquid will pass into tank 40by reason of a faulty seal at injecting valve 56. Annular flange 64 andannular wall 80 do not touch. but are normally spaced apart as shown inFig. 3.

A pressure of from twelve to fourteen pounds within tank 40 will operateinjecting valve 56, and solongas itispossibletochargetheliquidbeingtreated with carbon dioxide at this pressure the released gases willpass through injecting valve and into receptacle 6. When the pressin-ewithin receptacle 6 and tank 40 exceeds fourteen pounds, and climbs toseventeen or nineteen pounds, further charging will be stopped becauserelief valve 44 will then be brought info play to allow the escape ofexcess gases being formed.

The structure for agitating the liquid being treated is here illustratedto be a pair of rockers 84 mounted on receptacle 6. When the unit isbeing used, the slightest handling will cause the same to move andshake" the contents thereof.

Having thus described the invention. what is claimed as new and desiredto be secured by Ietters Patent is:

l. A carbonating and cooling apparatus of the character describedcomprising, in combination a receptacle for the liquid being treated;and a carbonator tank vprojecting into said receptacle from exteriorlythereof. said tank having a valve assembly forming a part thereof,positioned in that portion of said tank within the receptacle anddischarging gas from the former at a point adjacent the bottom of thelatter, and a relief valve in the exterior portion thereof whereby gasgenerated within said tank may pass therefrom both into the receptacleand to the atmosphere exteriorly thereof.

2. A carbonating and cooling apparatus of the character describedcomprising, in combination a receptacle for the liquid being treated: acarbonator tank adapted to contain solidified carbon dioxide projectinginto said receptacle from exteriorly thereof; an injecting valveestablishing communication between the receptacle and said carbonatortank; a relief valve permitting escape of gas to the atmosphere fromwithin said tank; and a container for solidified carbon dioxideextending into said receptacle having a relief valve for liberatinggases to the atmosphere from within the container.

3. A carbonating and cooling apparatus of the character describedcomprising in combination, a receptacle for the liquid being treated; acarbonator tank adapted to contain solidied carbon dioxide projectinginto said receptacle from exteriorlythereof; an injecting valveestablishing communication between the receptacle and said carbonatortank; a relief valve permitting escape of gas to the atmosphere fromwithin said tank; and means mounted on said receptacle for agitating thecontents of both receptacle and carbonator tank whereby to cause uniformcarbonation.

4. A carbonating and cooling apparatus of the character describedcomprising in combination, a receptacle for the liquid being treated: acar"- bonator tank adapted to contain solidified carbon dioxideprojecting into said receptacle from exteriorly thereof; aninjectingvalve establishim communication between the receptacle and saidcarbonator tank; a relief valve permitting escape of gas to theatmosphere'from within said tank; and means associated with saidreceptacle for agitating the contents of both receptacle andcarbonatortank whereby to cause uniform carbonation, said meanscomprising a plurality of rockers carried exteriorly of said receptacle.

5. In an apparatus for cooling and carbonating liquids, a vessel for theliquid to be treated, a plurality of containers projecting into saidvessel, solidied carbon dioxide positioned in said containers, means forplacing the interior of one of said containers in communication withsaid vessel and pressure relief means for each of said containers.

6. In an apparatus for cooling and carbonating liquids, a vessel for theliquid to be treated, a container projecting into said vessel in heatexchange relation with liquid therein, solidified carbon dioxidepositioned in said container, a receptacle projecting into said vessel,solidified carbon dioxide in said receptacle, means for dischargingcarbon dioxide, formed by sublimation, from said receptacle into saidvessel and a pressure relief valve for said container and saidreceptacle. f

'7. An apparatus for cooling and carbonating liquids including incombination a vessel for the liquid to be treated, a pair of solidifiedcarbon dioxide receiving containers projecting into said vessel,solidied carbon dioxide positioned in said containers, one of saidcontainers being adapted to discharge gas, liberated by heat exchangewith the liquid, to the atmosphere and the other of said containersadapted to discharge carbon dioxide into the liquid in said vessel and apressure relief valve for said last mentioned container.

8. In an apparatus for cooling a liquid and charging it with carbondioxide gas, a vessel for receiving the liquid to be cooled andcarbonated, a pair of containers in heat exchange relation with theliquid to be treated, means for introducing solidiiied carbon dioxideinto said containers, and means for discharging carbon dioxide gas,liberated in one of said containers, into the vessel to charge theliquid therewith and pressure relief valves for said containers.

9. In an apparatus for cooling a liquid and. charging it with carbondioxide, a vessel for receiving the liquid to be cooled and carbonated,a pair of solidified carbon dioxide receiving containers, means forpositioning the containers to remove heat from the liquid to be cooledand means for discharging the sublimated carbon dioxide gas from one ofsaid containers to charge the liquid therewith and pressure reliefvalves for said solidied carbon dioxide receiving containers.

LEIGH C. CARROLL. CHARLIE W. LOVELACE.

